Improved cuttes-guide fob moulding machines



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IMPROVED GUTTER-GUIDE POR MOULDING MACHINES.

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Be it known that I, DEDRICK JORDAN, of Charlestown, in the county ot' Middlesex, and `State oi' Massachusetts, have invented a new and useful improvement in Cuttcr- Guides for Wood-Moulding Unchines, of which the -following is a full, clear, and exact description, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l represents an elevation of the cutter-guide, containing my improvements..

Figure 2 is a section of the same, showing the knives and adjust-ing devices.

Figure 3 is a transverse section on the line :u of iig. 1.

Similar letters of reference indicate like parts in the several figures.

VThe object of my invention is to provide a means for gauging the thickness of a. shavingat any desirable portionot` the edge of the cutter, and also ameansfor readily adjust-ing the gauge collar t6 the cutters; and the invention consists in constructing the gauge collar with an outwardly projecting iiange at its lower edge, by which the shaving is gauged; and also in the use of an adjustable collar, in connection with a tightening and a regulating nut, so arranged as to admit of the gauge collar being raised or lowered to adjust it to any desired position in relation to th'e cutters. v

My invention is designed as animprovernent upon a rotary cutter for which patent was granted toJ. P. Grosvenor, on May 28, 1858. v

Referring to the drawings, s represents a vertical spindle or arbor, to the lower end ot' which'is att-ached a base-piece, o, which serves as a. support to the cutters and collars above. On the lbase-piece o rest the cutters n n, which tit in corresponding grooves in the same, and alsoiin grooves vin the collar lm above. k k represent knives, which tit in corresponding grooves formed respectively in the collars im, as shown Vin iig. 2, and over the collar Z are fitted, in a similar manner, the cutters z' z', which project throughopenin-gs iu the\cutterguide a, and are surmounted by the collar 7L. The cutters, of which there may be a series, according to the nature of the moulding required, are of curved form, as shown in fig. 3,-aud are iitted in corresponding grooves in the several collars. By curving the cutters a more direct cut'can be made upon the stuit` than by the usual straight knife, and they are'also more easily adjusted to the work. The straight knife, when projected considera-bly from the guide, has rather a scraping effect, whereas the curved cutter is betteradapted to shave the material. a represents the cutter-guide, which is formed with a shoulder, a', that rests upon a nut, c, which latter screws upon the cylinder e. The cylinder e is screw-threaded on its outer surface, and is iitt-cd to move freely on the spindle s. A retaining-nut, d, screws upon the cylinder ,aud rests upon the upper portion of the cutterguide a. The lower portion of the cutter-guide a is formed with an outwardly projecting edge I), as shown in tig. 2, by means of which, as the guide is adjusted higher or lower, the thickness of the shaving maybe readily gauged at any desired portion of the edge of the cut-ters c. The project-ion b serves also as a protection to the workmen, as it prevents the stu' from being unduly acted upon by the rapid rotation of the cutters, which frequently occasions serious accidents. The cutter-guide a is adjusted to the cutters' by ftirst removing the retaining-nut d. The guide a being then lifted off, the nut c is screwed up or down ou the threaded cylinder e, which admits of the knives or cutters being raised or lowered. Ihe guide a is then replaced and secured in position on the nut c by the nut (Z. n is a nut, which serves to hold the parts together on the spindle. The collar m is also constructed with an outwardly projecting flange m', as shown, for the purpose of gauging the shaving, and also serving as a guide. y A

I do not claim a rotary cutter-guide, as I am aware such has been used. But what I do claim, and desire to secure by Letters Patent, is-

The combination of the'cutter-guide c, constructed with the flange l, thc cylinder c, and the adjustable and retaining-nuts c d, as and for the purpose specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

DEDRIOK JORDAN.

Witnesses:

J. H. Agnus, H. E. JORDAN. 

